The following schools are full members of KORCOS for the 2019-20 school year.
Seoul Foreign School
Korea Kent Foreign School
Korea International School
Gyeonggi Suwon International School
Seoul International School
Cheonga Dalton School
Korea Foreign School
Kwangju Foreign School
Seoul Central International School
Korea International School- Jeju Campus
Early Childhood Learning Center
The following schools are associate members of KORCOS for the 2019-20 school year.
Hyundai Foreign School
International School Busan
Daegu International School
The following companies are affiliate members of KORCOS for the 2019-20 school year.
Oxford University Press
TTS Group Ltd.